i've received today my new sim-card...
t-mobile germany.
data flatrate, flatrate to german landline, flatrate to t-mobile (D1 network), sms and mms flatrate to t-mobile, t-mobile hotspot flatrate and option to have flatrate to all the other mobile networks for 5€ per month. (combi flat m)
and that all for 19,95€ per month... :-D (not for 49,95€ (without mobile) or 59,95€ (with mobile))

happy n900 waiting...